Gaya APA
William P. Shepard, dkk. (1948).
Essentials Of Public Health .
London:
J.B.Lippincot Company.
Gaya Chicago
William P. Shepard, dkk.
Essentials Of Public Health.
London:
J.B.Lippincot Company,
1948.
Text.
Gaya MLA
William P. Shepard, dkk.
Essentials Of Public Health.
London:
J.B.Lippincot Company,
1948.
Text.
Gaya Turabian
William P. Shepard, dkk.
Essentials Of Public Health.
London:
J.B.Lippincot Company,
1948.
Print.